AADE friendly codes (φιλικοί κωδικοί): create, recover and log in
Updated · Rotomal
Friendly codes (φιλικοί κωδικοί) are a username and password a business creates in AADE's myDATAusers app (https://www1.aade.gr/mydataappusers) with its TAXISnet credentials, to log in to timologio and myDATAapp. To create or recover them, open https://mydata.aade.gr/timologio/, click «Είσοδος με Φιλικούς Κωδικούς» (log in with friendly codes) and then «Δημιουργία / Ανάκτηση Φιλικών Κωδικών» (create / recover friendly codes), or go through myAADE: Εφαρμογές > Δημοφιλείς Εφαρμογές > myDATA > Φιλικοί κωδικοί και εξουσιοδοτήσεις myDATAusers. The username can't be changed later; only the password can.
Friendly codes vs TAXISnet vs Subscription Key
| Credentials | What they are | Where you create them | What they're for |
|---|---|---|---|
| TAXISnet | Your credentials for AADE services | You already have them | Creating friendly codes or a Subscription Key; the timologio login page doesn't accept them |
| Friendly codes | Username (ΟΝΟΜΑ ΧΡΗΣΤΗ) and password (ΚΩΔΙΚΟΣ) | myDATAusers, with TAXISnet | Logging in to timologio («Είσοδος με Φιλικούς Κωδικούς») and to myDATAapp |
| Subscription Key | API key, used with a username | myDATA REST API registration, with TAXISnet | Logging in to timologio with your VAT number (ΑΦΜ), and connecting software to myDATA |
Create friendly codes, step by step
- Open https://mydata.aade.gr/timologio/Account/LoginFC (or click «Είσοδος με Φιλικούς Κωδικούς» on https://mydata.aade.gr/timologio/) and choose «Δημιουργία / Ανάκτηση Φιλικών Κωδικών». This opens myDATAusers (https://www1.aade.gr/mydataappusers).
- Sign in with the business's TAXISnet credentials.
- Set a username and password. Choose the username carefully: it can't be changed later.
- Alternatively, from myAADE: Εφαρμογές > Δημοφιλείς Εφαρμογές > myDATA > Φιλικοί κωδικοί και εξουσιοδοτήσεις myDATAusers.
Log in with friendly codes
- On https://mydata.aade.gr/timologio/Account/LoginFC enter the username (ΟΝΟΜΑ ΧΡΗΣΤΗ) and password (ΚΩΔΙΚΟΣ).
- If the screen asks for a VAT number (ΑΦΜ) and Subscription Key, you're on the other login: click «Είσοδος με Φιλικούς Κωδικούς».
- The same friendly codes log you in to myDATAapp on a phone or tablet.
- Both login methods in detail: https://rotomal.com/en/ilektroniki-timologisi/timologio-eisodos/
Forgot your friendly codes: recover or change the password
Resetting is done only in myDATAusers: «Δημιουργία / Ανάκτηση Φιλικών Κωδικών», sign in with TAXISnet and set a new password. You can change the password there at any time.
The username can't be changed. If it doesn't suit you, you can log in to timologio with your VAT number and a Subscription Key instead, also created with TAXISnet: https://rotomal.com/en/ilektroniki-timologisi/subscription-key/
Friendly codes for your accountant or an employee
Your accountant or employee doesn't need your credentials. You authorise them in myDATAusers; they first accept the authorisation in myDATAusers and then create their own friendly codes to issue on your behalf.
If you'd like to do it together
For questions, AADE refers you to my1521 (phone 1521). If you prefer a video call, Invoices in Order walks you from friendly codes to your first test invoice, from €29 one-time. You type your own credentials; we never ask for them or keep them.
Questions
What are AADE friendly codes (φιλικοί κωδικοί)?
A username and password you create with TAXISnet in myDATAusers, to log in to timologio and myDATAapp without a Subscription Key.
Where do I create friendly codes?
In myDATAusers (https://www1.aade.gr/mydataappusers): from the timologio login page via «Δημιουργία / Ανάκτηση Φιλικών Κωδικών», or in myAADE under Εφαρμογές > Δημοφιλείς Εφαρμογές > myDATA > Φιλικοί κωδικοί και εξουσιοδοτήσεις myDATAusers.
I forgot my friendly codes. What do I do?
Open «Δημιουργία / Ανάκτηση Φιλικών Κωδικών», sign in with TAXISnet and set a new password. Resetting is only possible in myDATAusers.
Can I change the username?
No. The friendly-codes username can't be changed; only the password can.
Are they the same as my TAXISnet credentials?
No. You use TAXISnet to create friendly codes; the timologio login page only accepts friendly codes, or a VAT number with a Subscription Key.
Sources
- AADE: timologio login with friendly codes (link «Δημιουργία / Ανάκτηση Φιλικών Κωδικών» to myDATAusers) Source: mydata.aade.gr
- AADE: timologio login page (VAT number & Subscription Key) Source: mydata.aade.gr
- Taxheaven: myDATAapp guide and Q&A: friendly codes in myDATAusers, username can't be changed, authorised users (28 Jan 2025) Source: taxheaven.gr
- Naftemporiki: myDATAapp, getting credentials, password reset and username (23 Feb 2025) Source: naftemporiki.gr
Guides and answers
- AADE timologio: issuing e-invoices with Greece's free app
- Greece e-invoicing from 2 November 2026: what applies now it has started
- AADE timologio login (e timologio eisodos), step by step
- AADE Subscription Key: where to find it and how to get a new one
- Greek e-invoicing providers: prices, and when free timologio is enough
- Greek e-invoicing penalties: how much, from when, and the exception
- Greek e-invoicing start-of-use declaration: who files it, and by when
- No Greek e-invoicing provider yet: the free timologio fallback